A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
Hi
Type Event Title Winter Warfare Rarity Rare Edition Crimson and Jade [ View Printings ] Text Winter Until the beginning of your second Events Phase from now, Terrains can not be played, and actions can not move units to or from battlefields.
For how many of my turns it works, Until my nex turn, or turn in resolved and next of my turn?
Greetings
Jabbas
For how many of my turns [does Winter Warfare] work...?
It does not count your current Events Phase when it starts looking for the "second from now". So, it will last through your current turn, through your next turn (which contains the first Events Phase from now), up until the beginning of your next Events Phase after that, on your second turn from now (Citation).